How Much Does Septic Tank Cleaning Cost?

Short answer: most homeowners pay $0.41–$0.48 per gallon, with an average around $0.44 (January 2026 homewyse.com). The final price comes down to job size, location, and local labor rates.

Typical cost — per gallon

$0.41 $0.48

Typical average: $0.44

Cost per gallon. Reference range reorganized from homewyse.com (January 2026); not a quote.

What you're actually paying for

Cost componentTypical rangeShare
Septic Tank Cleanout Labor, Basic$0.41–$0.48100%
Septic Tank Cleanout Job Supplies$0–$00%

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Frequently asked questions

How much does septic tank cleaning cost?

Nationally, septic tank cleaning typically costs $0.41–$0.48 per gallon, per January 2026 homewyse.com data.

What's included in septic tank cleaning cost?

A typical job breaks down into septic tank cleanout labor, basic, septic tank cleanout job supplies. The exact mix and totals vary by market.

Does septic tank cleaning cost vary by city?

Yes. It runs highest in New York, NY ($0.59–$0.70) and lowest in Austin, TX ($0.35–$0.41), driven by local labor and disposal rates.